Soybean oil is a vegetable oil that?s extracted from the seeds of the soybean plant. It?s also incredibly versatile and can be used in a variety of cooking methods, including frying, baking, and roasting. Soybean oil mostly consists of polyunsaturated fats, which are linked to lower cholesterol levels and a reduced risk of heart disease. Soybean oil is rich in vitamin K, which may help maintain bone strength and reduce the risk of fractures. Soybean oil contains omega-3 fatty acids, which play a key role in promoting health and preventing chronic disease. Soybean oil is rich in vitamin E, a nutrient that can help promote skin health. Applying it topically may protect against inflammation and help the skin retain moisture. Soybean oil can be used in place of other cooking oils in nearly any recipe. It can also be applied to the hair and skin or combined with essential oils.